diff --git a/build_tools/build_detect_platform b/build_tools/build_detect_platform
index 96a1fb331..497ca2f3d 100755
--- a/build_tools/build_detect_platform
+++ b/build_tools/build_detect_platform
@@ -198,7 +198,7 @@ EOF
       }
 EOF
     if [ "$?" = 0 ]; then
-        COMMON_FLAGS="$PLATFORM_LDFLAGS -DROCKSDB_FALLOCATE_PRESENT"
+        COMMON_FLAGS="$COMMON_FLAGS $PLATFORM_LDFLAGS -DROCKSDB_FALLOCATE_PRESENT"
     fi
 
     # Test whether Snappy library is installed